of cleveland



D. W. FRACKELTON, R. S. TYLER & W. M. REICHART.

INKING DEVICE FOR PRINTING PRESSES. APPLICATION FILED JAN- 29. I9l5.

Patented Aug. 8, 1916.

WITNESSES:

ATTORNEYS received UNITED STATES PATENT OFFICE.

DAVID W. FRACKELTON, OF CLEVELAND, RALPH S. TYLER, OF CLEVELAND HEIGHTS,

AND WILLIAM H. REICHART, OF

CLEVELAND, OHIO, ASSIGNORS TO THE CHANDLER & PRICE COMPANY, OFCLEVELAND, OHIO, A CORPORATION OF OHIO.

IN KING DEVICE FOR PRINTINGPRESSES.

Specification of Letters Patent.

Patented Aug. 8, 1916.

Application filed January 29, 1915. Serial N 0. 5,163.

Devices for Printing-Presses, of which the 7 following is aspecification, the principle of the invention being herein explained andthe best mode in which we have contemplated applying that principle, soas to distinguish it from other inventions.

In platen rinting presses, one approved method of in ing'the formconsists in passing thereover a pair of inking rollers which are made ofa special, more or less resilient, composition, such rollers beingmounted in a reciprocatin carriage and receiving the ink from a suitablefountain or like device disposed at the upper limit of such carriagestravel. In order, however, that the ink may be uniformly applied to the'form,

it is of course necessary that the ink thus on these composition rollersbe evenly distributed across the same, and it is furthermore necessarythat such distribution or spreading 'of the ink on the rollers becontinued during the period that they ass across the form, sinceotherwise the are spaces left on the rollers contact with the firstfewlines of the form will fail to properly ink the. succeedingjlines. asecondary roller is frequently provided in connection with the inkingrollers proper, the function of which is to spread the ink on thelatter, not only during the first part of their travel but during theirpassage across the form, and in order that a thorough distribution maybe effected this roller not only rotates but is also given a vibratorymovement, that is a movement longitudinally of its axis.

The object of the present invention is to provide more especially animproved vibratory roller, with means for operating the Accordingly,

same, so that the device as a whole may be readily applied to presentmachines if desired.

A further object is to provide a device of simple construction and easyoperation, so as to be unlikely to get out of order or to require muchpower.

To the accomplishment of the foregoing and related ends, said invention,then, consists of the means hereinafter fully described and claims.

The annexed drawing and the following description set forth in detailcertain mechanism embodying the invention, such disclosed meansconstituting, however, but one of various mechanical forms in which theprinciple of the invention may be used.

n said annexeddrawingrFigure l is a side elevational view of ourimproved device as applied to a typical laten press; Fig. 2 is a brokenplan view ofsuch device; Fig.3 is a transverse section taken on the line3-3, Fig. 2; Fig. 4 is an end elevation of the device as viewed from theleft in Fig. 2; Fig. 5 is a transverse section of a detail taken on theplane indicated by the line 55, ig. 1; and Fig. 6 is a transversesection of another detail taken on the plane indicated by the line 6-6Fig. 2.

Of the printing press proper only the bed 1 is illustrated, that is thepartwhich holds the form. This part also supports the disk 2 over whichthe inking device passes in its travel from the fountain to such form.finch device comprises principally a. series of composition rollers 3,4fand=5 of ,familiar construction, which are supported at theirrespective ends by arms 6 and 7 movably mounted in oscillatory frames,springs (not shown) being usually provided in connection with said armsto retain such rollers in more or less close contact with the surfaceacross which they travel. The forward roller 3 has the ends of itsspindle 8 directly journaled in arms 6, while the two following rollers,4 and 5, which are of more particular interest in the presentconnection, have the ends of their spindles 9 and 10 particularlypointed out in the journaled in a saddle 11 that is pivotally attachedto the outer ends of the corresponding arms '7. Oscillatorily supportedon the top of each of these saddles is a journal box 12 adapted toreceive the corresponding end of the supporting shaft 13 of athirdgoller 14, which is ordinarily designated a vibratory rollerbecause of the endwise reciprocable movement which it is desirablygiven. This roller is usually of metai and rests u on the twocomposition rollers 4 and 5, the egree of preure being ated by means ofnuts 15 on threaded studs 16, one of which latter passes through a slot17 in each of the journal boxes 12, as shown in Figs. 2 and 4. Saidroller 1% is keyed at its one end to a sleeve that forms the hub of apulley 18, rotatably mounted on said shaft but held against endwisemovement therealong. As a result of the foregoing construction it willbe seen that rotation of the pulley will rotate the roller, while stillleaving the latter free to be reciprocated longitudinally of its axis-In addition to the pulley 18 mounted as just described on shaft 13, twoidler pulleys 19 are rotatably mount (1 on the spindles 9 and 10 of thecomposition rollers below. Passing between such two idler pulleys andlooped over the pulley on the shaft 13 is a cord or round belt 20, therespective ends of which are fixedly attached to the machine bed 1 atpoints beyond the extreme limit of travel of the device downwardlyacross the bed and upwardly across the disk 2. One such point ofattachment is prefembly rendered adjustable by providing a take-up asshown in Fig. 1, such take-up consi simply of a threaded metal clip 21on the belt which passes through an upstanding ear or apelug 22, and hasa nut 23 threaded on its outer end. By means of the to oing the belt canbe maintained under any v of tension; the tension of such belt, however,will not be varied under normal operating conditions since it issupported in substantial parallelism throughout its length with the pathof travel of the grooved blocks 24 and 25 afiixed to the bed or theframe, at each point where the direction of such travel changes From theforegoing construction it will be obvious that as the rollers aremoved-either across the disk 2 or the bed 1 of the press, the belt 20parsing between the idler pullcys 19 and around the driving pulley 18 onthe spindle of the vibratory roller, will impart a positive rotativemovement to the latter, the direction of rotation depending upon thedirection in which the device as a whole is traveling, wh her up ordown. Obviously it is a matter of indifl'erence just what form the beltmay take, and this term rollers 4 and 5 by means of.

is to be hence understood as conuoting, not simply the round belt, shownfor illustrative purposes, but a flat belt. chain, or equivalent device.The longitudinally reciprocatory movement of this roller is producedincidentally to its rotation, by providing at one end thereof,preferably the end removed from the pulley 18, a continuous, reversethread 26, which is engaged by a finger '27 carried on an arm 28 so asto lie midway of the total travel of the roller during suchreciprocatory movement, (see Figs. 2 and 6). By virtue of thisengagement, the roller as it is rotated, is shifted longitudinally firstin one direction and then in the other the finger or nut traversing thereverse thread. It obviously makes no difierence in which direction theroller is thus rotated, the number of turns required to produce the fulllongitudinal movement of the roller of course depending upon thesteepness or pitch of such thread 26, and may be varied to suit therequirements of the service.

The foregoing construction of inking device, comprising, in combinationwith the two composition rollers 4 and 5, a vibratory roller driven by abelt disposed alongside of the path of travel of the rollers,constitutes a very simple arrangement for securin the positive rotationof such vibratory ro ler. At the mine time the longitudinal movement ofthe roller is secured automatically, incidentally to its rotation, bymeans of the reverse thread and swiveled nut, so that the belt in efiectconstitutes the sole operating means for imparting both of the desiredmovements to said roller. The belt, as well as the vibratory roller, maymoreover be readily attached to existing platen presses, since thejournal boxes that support the rolleraremounted directly on top of thesaddles in which are held the spindles of the composition rollers, whilethe means for securing the belt to the frame of the machine may beequally readily applied to the latter.

As is well known, in place of an actual disk, such as shown anddescribed herein as constituting the primary ink-distributing device, aroller or drum of relatively large diameter mounted on a stationaryaxis. is frequently used. The term disk should accordingly be understoodas referring to any suitable primary ink-distributing device.

Other modes of applying the principle of our invention may be employedinstead of the one explained, change being made as re gards themechanism herein disclosed. provided the means stated by any of thefollow ing claims or the equivalent of such stated means be employed.

We therefore particularly point out and distinctly claim as ourinvention z 1. In a platen printing prem, the combination with the bedand an larly related inking disk; of-an inking 1o ler adapted to bemoved across and in contact with said bed and disk; a distributingroller mounted so as to rotate in contact with said inking roller as thelatter is thus moved; a pulley connected with said distributing roller;and a belt relatively fixedly attached at its ends and intermediatelysupported so as to have one portion lie parallel with the bed andanother angularly related portion parallel with the disk, said beltpassing over said pulley so as to positively drive the same and saiddistributing roller.

2. In a platen printing press, the combination with the bed andangularly related inking disk; of an inking roller adapted to be movedacross and in contact with said bed and said disk; a distributing rollermounted so as to rotate in contact with said inking roller as the latteris thus moved; a pulley connected with said distributing roller; a beltrelatively fixedly attached at its ends and intermediately supported soas to have one portion lie parallel with the bed and another angularlyrelated portion parallel with the disk, said belt passing over saidpulley so as to positively drive the Same and said distributing roller;and means for adjusting the tension of said belt.

3. In a platen printing press, the combination with the bed andangularly related inking disk; of an inking roller adapted to be movedacross and in contact with said bed and disk; a distributing rollermounted so as to rotate in contact with said inking roller as the latteris thus moved; a pulley connected with said distributing roller; a beltrelatively fixedly attached at its ends and intermediately supported soas to have one portion lie parallel with the bed and another angularlyrelated portion parallel With the disk, said belt passing over saidpulley so as to drive the same and said distributing roller; and meanscooperating with the latter to reciprocate the same longitudinally ofits axis as it is thus driven.

4. In a platen printing press, the combination with the bed andangularly related inking disk; of an inking roller adapted to be movedacross and in contact with said bed and disk; a distributing rollermounted so as to rotate in contact with said inking roller as the latteris thus moved; a pulley connected with said distributing roller; a beltrelatively fixedly attached at its ends and intermediately supported soas to have one portion lie parallel with the bed and another angularlyrelated portion parallel with the disk, said belt passlng over saidpulley so as to drive the same and said distributing roller; and meanscooperating with the latter to reciprocate the same longitudinally ofits axis as it is thus driven, said means including an endless, reversescrew-thread on said roller and a relatively stationary member engagingsuch thread.

5. In a platen press, the combination with the bed and an inking disk;of an inking roller adapted to be moved across and in contact with saidbed and disk; a distributing roller mounted so as to rotate in contactwith said inking roller as-the latter is thus moved; a pulley connectedwith said distributing roller; an idler pulley rotatable about the axisof said inking roller; and a belt supported so as to lie parallel withthe path of travel of said rollers and passing under said idler pulleyand over the pulley connected with said distributing roller, so as topositively drive the latter,

6. In a platen printing press, the combination with the bed and inkingdiskof two inking rollers adapted to be move across and in contact withsaid bed and disk; a distributing roller mounted so as to rotate incontact with both of said inking rollers, asthe latter are thus moved; apulley connected with said distributing roller; two idler pulleysrotatable about the axes of said inking rollers; and a belt supported soas to lie parallel with the path of travel of said rollers and passingaround said idler pulleys and over the pulley connected with saiddistributing roller, so as to positively drive the latter.

7. In a platen printing press, the combination with the bed and inkingdisk; of two inking rollers adapted to be moved across and in contactwith said bed and disk; a distributing roller mounted so as to rotate incontact with both of said inking rollers, as the latter are thus moved;a pulley connected with said distributing roller; two idler pulleysrotatable about the axes of said inking rollers; a belt supported so asto lie parallel with the path of travel of said rollers and passingaround said idler pulleys and over the pulley connected with saiddistributing roller, so as to positively drive the latter; and meanscooperating with said distributing roller to reciprocate the samelongitudinally of its axis as it is thus driven.

8. In a platen printing press, the combination with the bed and inkingdisk; of two inking rollers adapted to be moved across and in contactwith said bed and disk; a distributing roller mounted so as to rotate incontact with both of said inking rollers, as the latter are thus moved;a pulley connected with said distributing roller; two idler pulleysrotatable about the axes of said inking rollers; a belt supported so asto lie parallel with the path of travel of said rollers and with saiddistributing roller, so

as to positively drive the latter; and means Signed by us, this 26 dayof January, 1915.

coiiperating with said distributing roller to DAVID W. FRACKELTON.reciprocate the same longitudinally of its RALPH S. TYLER.

axis as it is thus driven, said means includin WLLLIAM M. REICHART. anendless, reverse screw-thread on sai Attested by roller and a relativelystationary member J. E. WILKISON,

engaging such thread. J. W. KIRKPATRICK.

